Cita APA (7th ed.)

Tongko, P. L. (1948). Philippine government (rev. ed.). [s.n.].

Cita Chicago (17th ed.)

Tongko, Primo L. Philippine Government. rev. ed. Manila: [s.n.], 1948.

Cita MLA (9th ed.)

Tongko, Primo L. Philippine Government. rev. ed. [s.n.], 1948.